Icyerekezo cya MOS: Ifu ya kakawa itunganyijwe na alikali, yakozweho na karubonate ya potasiyumu kugira ngo hakurweho umunyu wayo usanzwe, bigatuma ibara ryirabura kandi uburyohe bworoshya. Ifite uburyohe bwa shokora bwuzuye kandi bworoshye kurusha ikakawa gisanzwe. Ifite pH ya 7 kugeza kuri 8, ikorana n'ifu ivubura (atari bikarubonate) nk'ikivubura. Koresha mu makeke y'uburyo bw'i Burayi, muri shokora ishyushye no mu gutera ku turufe.